LINQ subquery IN

Question

I\'m a newbie with the IQueryable, lambda expressions, and LINQ in general. I would like to put a subquery in a where clause like this :

Sample code :

Answer 1

var innerquery = from x in context.DataDictVal
                 where x.TbiTableName == myTableNameVariable
                    && x.DdColumnName == "Status"
                    && x.DdbColumnValLangDsc1.StartsWith("ac")
                 select x.DdvColumnVal;

var query = from c in context.Client
            where innerquery.Contains(c.Etat)
            select c;